An apparatus of user equipment (UE) includes processing circuitry coupled to a memory, where to configure the UE for uplink (UL) beam selection in a New Radio (NR) network, the processing circuitry is to decode a medium access control (MAC) control element (CE) from a base station. The MAC CE identifies a sounding reference signal (SRS) resource set and a plurality of spatial relationship reference signals. An SRS is selected from the SRS resource set. A beam direction associated with a spatial relationship reference signal of the plurality of spatial relationship reference signals is derived. The spatial relationship reference signal corresponds to the selected SRS. The SRS is encoded for beamforming to transmit the selected SRS in the derived beam direction.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The apparatus of claim 1, wherein the MAC CE separately indicates a spatial relationship for each of a plurality of PUCCH resources sets.
3. The apparatus of claim 1, wherein the MAC CE indicates the same spatial relationship applies for PUCCH resources of all PUCCH resource sets.
4. The apparatus of claim 1, wherein the MAC CE includes a bandwidth part (BWP) ID to identify the BWP for which the MAC CE applies.
5. The apparatus of claim 1, wherein the MAC CE includes a serving cell ID to identify the serving cell for which the MAC CE applies.
6. The apparatus of claim 1, wherein the MAC CE is 3 octets.
7. The apparatus of claim 1, wherein the MAC CE reduces the signaling overhead in comparison to a PUCCH spatial relation activation/deactivation MAC CE.
8. The apparatus of claim 1, wherein the spatial relationship in the MAC CE is configured by a PUCCH-SpatialRelationlnfold.
10. The computer-readable storage medium of claim 9, wherein the MAC CE separately indicates a spatial relationship for each of a plurality of PUCCH resources sets.
11. The computer-readable storage medium of claim 9, wherein the MAC CE indicates the same spatial relationship applies for PUCCH resources of all PUCCH resource sets.
12. The computer-readable storage medium of claim 9, wherein the MAC CE includes a bandwidth part (BWP) ID to identify the BWP for which the MAC CE applies.
13. The computer-readable storage medium of claim 9, wherein the MAC CE includes a serving cell ID to identify the serving cell P for which the MAC CE applies.
14. The computer-readable storage medium of claim 9, wherein the spatial relationship in the MAC CE is configured by a PUCCH-SpatialRelationlnfold.
16. The UE of claim 15, wherein the MAC CE separately indicates a spatial relationship for each of a plurality of PUCCH resources sets.
17. The UE of claim 15, wherein the MAC CE indicates the same spatial relationship applies for PUCCH resources of all PUCCH resource sets.
18. The UE of claim 15, wherein the MAC CE includes a bandwidth part (BWP) ID to identify the BWP for which the MAC CE applies.
19. The UE of claim 15, wherein the MAC CE includes a serving cell ID to identify the serving cell for which the MAC CE applies.
20. The UE of claim 15, wherein the spatial relationship in the MAC CE is configured by a PUCCH-SpatialRelationlnfold.
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November 26, 2019
April 9, 2024
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